Groups > linux.kernel > #1719349

Re: [PATCH 1/4] KVM: VMX: cache secondary exec controls

From	Paolo Bonzini <pbonzini@redhat.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH 1/4] KVM: VMX: cache secondary exec controls
Date	2017-08-24 17:50 +0200
Message-ID	<ui2ym-8q8-25@gated-at.bofh.it> (permalink)
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On 24/08/2017 17:41, Jim Mattson wrote:
> Userspace can establish the value of the virtualized
> IA32_VMX_PROCBASED_CTLS2 MSR via the KVM_SET_MSRS ioctl, which goes
> through vms_set_vmx_msr. But maybe that's not important, since
> features can only be disabled on that path.

Yeah, I was only thinking of non-nested in the commit message.  It's
complicated enough. :)

Paolo

> On Thu, Aug 24, 2017 at 8:25 AM, Paolo Bonzini <pbonzini@redhat.com> wrote:
>> On 24/08/2017 16:47, Jim Mattson wrote:
>>>> Currently, secondary execution controls are divided in three groups:
>>>>
>>>> - static, depending mostly on the module arguments or the processor
>>>>   (vmx_secondary_exec_control)
>>>>
>>>> - static, depending on CPUID (vmx_cpuid_update)
>>> There should also be:
>>>
>>> - static, depending on guest VMX capability MSRs (vmx_set_vmx_msr)
>> Can you explain what you mean?
>>
>> Paolo

Thread

[PATCH v7 0/4] Raise #UD and disable execution controls for more CPUID bits Paolo Bonzini <pbonzini@redhat.com> - 2017-08-24 15:40 +0200
  [PATCH 3/4] kvm: vmx: Raise #UD on unsupported RDSEED Paolo Bonzini <pbonzini@redhat.com> - 2017-08-24 15:40 +0200
    Re: [PATCH 3/4] kvm: vmx: Raise #UD on unsupported RDSEED David Hildenbrand <david@redhat.com> - 2017-08-24 19:50 +0200
  [PATCH 1/4] KVM: VMX: cache secondary exec controls Paolo Bonzini <pbonzini@redhat.com> - 2017-08-24 15:40 +0200
    Re: [PATCH 1/4] KVM: VMX: cache secondary exec controls Jim Mattson <jmattson@google.com> - 2017-08-24 16:50 +0200
      Re: [PATCH 1/4] KVM: VMX: cache secondary exec controls Paolo Bonzini <pbonzini@redhat.com> - 2017-08-24 17:30 +0200
        Re: [PATCH 1/4] KVM: VMX: cache secondary exec controls Jim Mattson <jmattson@google.com> - 2017-08-24 17:50 +0200
          Re: [PATCH 1/4] KVM: VMX: cache secondary exec controls Paolo Bonzini <pbonzini@redhat.com> - 2017-08-24 17:50 +0200
            Re: [PATCH 1/4] KVM: VMX: cache secondary exec controls Paolo Bonzini <pbonzini@redhat.com> - 2017-08-24 18:10 +0200
            Re: [PATCH 1/4] KVM: VMX: cache secondary exec controls Jim Mattson <jmattson@google.com> - 2017-08-24 18:10 +0200
  [PATCH 2/4] kvm: vmx: Raise #UD on unsupported RDRAND Paolo Bonzini <pbonzini@redhat.com> - 2017-08-24 15:40 +0200
    Re: [PATCH 2/4] kvm: vmx: Raise #UD on unsupported RDRAND David Hildenbrand <david@redhat.com> - 2017-08-24 19:50 +0200
  [PATCH 4/4] kvm: vmx: Raise #UD on unsupported XSAVES/XRSTORS Paolo Bonzini <pbonzini@redhat.com> - 2017-08-24 15:40 +0200
    Re: [PATCH 4/4] kvm: vmx: Raise #UD on unsupported XSAVES/XRSTORS Jim Mattson <jmattson@google.com> - 2017-08-24 17:00 +0200
      [PATCH v8 4/4] kvm: vmx: Raise #UD on unsupported XSAVES/XRSTORS Paolo Bonzini <pbonzini@redhat.com> - 2017-08-24 18:20 +0200
        Re: [PATCH v8 4/4] kvm: vmx: Raise #UD on unsupported XSAVES/XRSTORS Jim Mattson <jmattson@google.com> - 2017-08-24 22:50 +0200

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